Sesame Street: Jack Black defines Octagon

New season of Sesame Street premiering Monday Sept 26th 2011! New episodes weekday mornings on PBS! (Check local listings.) Enjoy this sneak peek from Season 39 of Sesame Street, which launches on August 11 along with a fantastic new website at his excit In this clip, Jack Black defines the word ’Octagon’ with help from Elmo. Sesame Street is a production of Sesame Workshop, a nonprofit educational organization which also produces Pinky Dinky Doo, The Electric Company, and